> But agaon what about the addresses? Since it's a > sequential interface > you may be able to get away with using some counters > (like a pair of 74HCT393 > ripple counters) to address the memory. Are you > using an 8 line IDE data bus > or 16? I'm using 16 bit data base (mostly going from Wesley's IDE Interface, w/o the 8255 and inverters). I figured that since I won't be accessing the IDE drive and the RAM at the same time, I could share the 16 datalines and some of the control lines (by holding the IDE in RESET) to do addressing and data transfers to the RAM. This won't work? Cheers ===== MJ Brush LeftClick.ca Internet Media Services mbrush@[NOSPAM]leftclick.ca ______________________________________________________________________ Post your free ad now! http://personals.yahoo.ca -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads